.back-to-top{z-index:999;background-color:var(--color-background-one);width:1.3rem;box-shadow:0 15px 20px 3px var(--top-color);opacity:.7;position:fixed;bottom:3rem;right:.5rem}.back-to-top,.back-to-top div{aspect-ratio:1;border-radius:50%;justify-content:center;align-items:center;display:flex}.back-to-top div{width:80%;box-shadow:0 0 13px var(--shen-background-webkit)}.back-to-top div i{background-image:url(data:image/png;base64,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);background-size:cover;width:80%;height:80%}.back-to-top div:active{transform:scale(.8)}.back-to-top:hover{opacity:1}